Spend rebates at the beginning of the game, and the school belle becomes my girlfriend

Lin Yan was accidentally reborn back to his college days, activated the Perfect Life System, and obtained the privilege of consumption rebates.
"It is detected that the host consumes Latiao*1, and the rebate is 1000 million."
"It is detected that the host consumes Malatang*1, and the rebate is [-] million."
"It is detected that the host consumes an iPhone*1, and the rebate is 100 billion."
After achieving the highest achievements in various fields, Lin Yan smiled helplessly: "I just want to spend money, why is it so difficult?"
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